MIDI Monitor

MIDI Monitor is an app to display MIDI signals going in and out of your Mac. Musicians will find it handy for tracking down confusing MIDI problems, and programmers can use it to test MIDI drivers and applications.

MIDI Monitor is free to download and use. The source code is available as Open Source, under the BSD license.

Rewrote some code to remove dependencies on the Omni frameworks. This makes it easier for me to distribute the code, and easier for others to build the code. It also makes the application slightly smaller.

The downside: MIDI Monitor now requires Mac OS X 10.2 or later. I don't think this will be a hardship since most MIDI drivers and applications are now built for 10.2. If you need a version which runs on 10.1, download it here.

Fixed a bug which prevented external device names from appearing in the Sources section.